Estimation of deep-reservoir temperature of CO2-rich springs in Kangwon district, South Korea

Choi, Hyeon Seok; Koh, Yong–Kwon; Bae, Dae Seok; Park, Seong Sook; Hutcheon, Ian; Yun, Seong Taek

doi:10.1016/j.jvolgeores.2004.10.001

Cited by 31 publications

(25 citation statements)

References 51 publications

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“…Also, the spring gas can be used to speculate deep rock alteration, in particular volcanic rocks related to magmatic activity. Some interesting research work has been done around the Pacific subduction zone (Lan et al, 2007;Umeda et al, 2006;Choi et al, 2005;Shaw et al, 2003;Cook et al, 2001;Allard et al, 1997;Sano et al, 1997;Ishibashi et al, 1995). Active volcanoes are often associated with thermal springs (Cruz and França, 2006;Elkins et al, 2006;Barbieri and Morotti, 2003;Cartwright et al, 2000;Sano et al, 1997.…”

Section: Introductionmentioning

confidence: 99%

Geochemical evidence of gas sources of CO2-rich cold springs from Wudalianchi, Northeast China

Mao

Wang

Chudaev³

et al. 2009

J. Earth Sci.

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CO 2 -rich cold springs occur near the active volcanoes at Wudalianchi (五大连池), Northeast China. The springs are rich in CO 2 , with HCO 3 -as the predominant anion and have elevated contents of total dissolved solid (TDS) (>1 000 mg/L), Fe 2+ (>20 mg/L), Sr (>1 mg/L), and dissolved Si (>20 mg/L). The compositions of escaped and dissolved gases of the springs are similar. The δ 13 C values of escaped gases and dissolved gases in mineral springs at Wudalianchi vary from -8.77‰ to -4.53‰ and -8.24‰ to -5.26‰, while δ 18 O values vary from -10.68‰ to -7.65‰ and -10.30‰ to -8.84‰, respectively, indicating the same upper mantle origin of CO 2 of escaped gases and dissolved gases in the springs. Carbon and oxygen isotope fractionations and water-CO 2 exchange were weak in the process of groundwater flow. The 4 He content exceeds 5 000×10 -6 cm 3 ·STP/mL in escaped gases of the mineral springs, and the 3 He/ 4 He ratios of the escaped and dissolved gases vary from 2.64R a to 3.87R a and 1.18R a to 3.30R a , respectively. It can be postulated that the CO 2 of mineral springs deriving from the magma chamber of the upper mantle moves upward to the surface, to increase the content of 4 He in the mineral springs and decrease the ratio of 3 He/ 4 He. The helium origin of escaped gases in springs can be calculated with the MORB-crust mixing model, but that in the north spring can be better explained with the MORB-crust-air mixing model due to the effect of mixing with surface water. However, dissolved helium in springs, except the north spring, is better explained with the MORB-crust-ASW mixing model. KEY WORDS: δ 13 C, δ 18 O, 3 He/ 4 He, mineral spring, CO 2 , Wudalianchi, Northeast China.

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Section: Introductionmentioning

confidence: 99%

Geochemical evidence of gas sources of CO2-rich cold springs from Wudalianchi, Northeast China

Mao

Wang

Chudaev³

et al. 2009

J. Earth Sci.

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“…However, little is known about the relationship between hydrochemical characteristics of the groundwater and hydrogeologic conditions in the aquifer (Yun et al, 1998;Chae et al, 2001;Choi et al, 2005). In this study, we performed a hydrogeochemical and environmental isotope study on bedrock groundwaters in the Pocheon spa area (Fig.…”

Section: Introductionmentioning

confidence: 99%

Hydrogeochemistry of sodium-bicarbonate type bedrock groundwater in the Pocheon spa area, South Korea: water–rock interaction and hydrologic mixing

Chae

Yun

Kim

et al. 2006

Journal of Hydrology

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151

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“…2002), including marine limestone (–2 to 2‰), deep‐seated mantle or magmatic carbon (–8 to –5‰), terrestrial and marine organic carbon (–26 to –22‰), and metamorphic processes (3–5‰). Based on carbon isotopes, it has been revealed that large amounts of dissolved CO 2 are generally derived from deep‐seated magmatic or mantle sources (Choi et al. 2005 and references therein).…”

Section: Resultsmentioning

confidence: 99%

“…1994) in neutral solutions (5 < pH < 9). Almost all the reported CO 2 ‐rich groundwaters in the world fall within this pH range (Choi et al. 2005 and references therein).…”

Section: Introductionmentioning

confidence: 96%

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The geochemical evolution of very dilute CO₂‐rich water in Chungcheong Province, Korea: processes and pathways

et al. 2007

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A geochemical study was carried out on the CO 2 -rich water occurring in granite areas of Chungcheong Province, Korea. In this area, very dilute and acidic CO 2 -rich waters [62-242 mg l )1 in total dissolved solid (TDS), 4.0-5.3 in pH; group I) occur together with normal CO 2 -rich waters (317-988 mg l )1 in TDS, 5.5-6.0 in pH; group II). The concentration levels and ages of group I water are similar to those of recently recharged and low-mineralized groundwater (group III). Calculation of reaction pathways suggests that group I waters are produced by direct influx of CO 2 gas into group III type waters. When the groundwater is injected with CO 2 , it develops the capacity to accept dissolved solids and it can evolve into water with very high solute concentrations. Whether the water is open or closed to the CO 2 gases becomes less important in controlling the reaction pathway of the CO 2 -rich groundwater when the initial pCO 2 is high. Our data show that most of the solutes are dissolved in the CO 2 -rich groundwater at pH > 5 where the weathering rates of silicates are very slow or independent of pH. Thus, groundwater age is likely more important in developing high solute concentrations in the CO 2 -rich groundwaters than accelerated weathering kinetics because of acidic pH caused by high pCO 2 .

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Estimation of deep-reservoir temperature of CO2-rich springs in Kangwon district, South Korea

Cited by 31 publications

References 51 publications

Geochemical evidence of gas sources of CO2-rich cold springs from Wudalianchi, Northeast China

Geochemical evidence of gas sources of CO2-rich cold springs from Wudalianchi, Northeast China

Hydrogeochemistry of sodium-bicarbonate type bedrock groundwater in the Pocheon spa area, South Korea: water–rock interaction and hydrologic mixing

The geochemical evolution of very dilute CO₂‐rich water in Chungcheong Province, Korea: processes and pathways

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Estimation of deep-reservoir temperature of CO2-rich springs in Kangwon district, South Korea

Cited by 31 publications

References 51 publications

Geochemical evidence of gas sources of CO2-rich cold springs from Wudalianchi, Northeast China

Geochemical evidence of gas sources of CO2-rich cold springs from Wudalianchi, Northeast China

Hydrogeochemistry of sodium-bicarbonate type bedrock groundwater in the Pocheon spa area, South Korea: water–rock interaction and hydrologic mixing

The geochemical evolution of very dilute CO2‐rich water in Chungcheong Province, Korea: processes and pathways

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The geochemical evolution of very dilute CO₂‐rich water in Chungcheong Province, Korea: processes and pathways